Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2010

  • question_answer
    The gerotypic expression seen in a person of blood group AB is called

    A)  dominant-recessive

    B)  codominance

    C)  incomplete dominance

    D)  corecession

    Correct Answer: B

    Solution :

    Co-dominance occurs when the contributions of both alleles are visible in the phenotype. In the ABO example, the \[{{\text{I}}^{\text{A}}}\] and \[{{\text{I}}^{\text{B}}}\] alleles are co-dominant in producing the AB blood group phenotype, in which both A-and B-type antigens are present.


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